Factor painting code from RenderBlock into BlockPainter.

Source/core/rendering/RenderBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 4295 matching lines @@
     // FIXME: when the above mentioned bug is fixed, it should hopefully be possible to call
     // clientBoxRect() or paddingBoxRect() in this method, rather than fiddling with the edges on
     // our own.
     if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
         rect.contract(0, scrollBarHeight);
     else
         rect.contract(scrollBarWidth, scrollBarHeight);
     return rect;
 }
 
-LayoutRect RenderBox::overflowRectForPaintRejection() const
-{
-    LayoutRect overflowRect = visualOverflowRect();
-    if (!m_overflow || !usesCompositedScrolling())
-        return overflowRect;
-
-    overflowRect.unite(layoutOverflowRect());
-    overflowRect.move(-scrolledContentOffset());
-    return overflowRect;
-}
-
 LayoutUnit RenderBox::offsetLeft() const
 {
     return adjustedPositionRelativeToOffsetParent(topLeftLocation()).x();
 }
 
 LayoutUnit RenderBox::offsetTop() const
 {
     return adjustedPositionRelativeToOffsetParent(topLeftLocation()).y();
 }
 
@@ skipping 185 matching lines @@
     ASSERT(style()->hasBackground() || style()->hasBoxDecorations());
 
     if (m_rareData && m_rareData->m_previousBorderBoxSize.width() != -1)
         return m_rareData->m_previousBorderBoxSize;
 
     // We didn't save the old border box size because it was the same as the size of oldBounds.
     return previousBoundsSize;
 }
 
 } // namespace blink